The manga follows a park keeper named Nana who looks after the various Friends in Japari Park. In the anime, a girl known only as Kaban wakes up in Japari Park with no recollection of who she is or how she got there and encounters a Serval friend. Together, they set out on an adventure to find out what kind of animal Kaban is, passing through multiple regions of Japari Park and meeting new Friends along the way.